For most Nigerian candidates applying to study, work or migrate abroad, the IELTS Speaking test is the single most nerve-wracking 11 to 14 minutes of the entire exam.
Unlike Listening or Reading, there is no answer sheet to fall back on, and the pressure of speaking directly to a trained examiner can make it easy to freeze or, just as damagingly, over-prepare until you sound robotic.
The good news is that the test is graded against four public, named criteria, rather than a vague impression of how confident you sounded. Understanding exactly what each criterion rewards can therefore be one of the fastest ways to improve your band score.
Understand what the examiner is listening for
Every Speaking test is scored equally across four categories: Fluency and Coherence, Lexical Resource, Grammatical Range and Accuracy, and Pronunciation, each worth 25 percent of the final band.
Fluency and Coherence measures whether you can keep talking without excessive hesitation, and whether your ideas connect logically rather than jumping around.
Lexical Resource measures the range and precision of your vocabulary, including whether you can paraphrase a question instead of repeating the examiner’s own words back at them.
Grammatical range and accuracy looks at how varied and accurate your sentence structures are, from simple statements to more complex clauses using words like although, because, or if.
Pronunciation covers clarity, stress, and intonation, not whether you sound like a native speaker from a particular country.
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This last point matters enormously for Nigerian candidates specifically: a Nigerian accent does not lower your score. IELTS examiners are trained to assess intelligibility, not accent neutrality, and both the British Council and IELTS Australia explicitly confirm that speaking with an accent is not penalised as long as your pronunciation is clear enough to be understood without strain.
What actually costs marks is mumbling, running words together so meaning is lost, or shifting stress patterns so unpredictably that the examiner has to work to follow you. Focus your practice on clarity, not on erasing an accent that was never the problem.
Never memorise answers
One of the biggest mistakes candidates can make in the Speaking test is relying on a memorised response, particularly in Part 2, the two-minute monologue based on a task card.
Examiners listen to many candidates and are trained to recognise rehearsed language, whether it is a pre-written answer or a generic template adapted to whatever topic appears.
A scripted answer can sound stiff, contain unnaturally advanced vocabulary that does not match the rest of the candidate’s speech, or ignore the specific details of the task card in favour of prepared content.
When an examiner detects this, it can affect your Fluency and Coherence score because genuine coherence comes from responding directly to what was asked, rather than delivering a monologue prepared in advance.
The solution is not to avoid preparation. Instead, prepare a structure rather than memorising sentences.
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For Part 2, practise a flexible structure that covers the setup, specific details, a turning point or reflection, and what you think about the subject now. Then fill that structure with fresh details based on the topic you receive on test day.
This gives you the organisation examiners reward without the unnatural delivery of a memorised script.
Use natural fillers and steady pace, not dramatic slowdown
It is perfectly acceptable to pause briefly to think. Natural fillers such as “That’s an interesting question” or “Let me think about that” can give you time to organise a more complex response without necessarily costing you marks.
Used sparingly, such phrases can sound like normal discourse markers rather than signs of weakness.
However, dramatically slowing down your speech to avoid mistakes is not a good strategy.
Multiple examiner-facing sources emphasise that speaking too slowly can be just as problematic as speaking too quickly. Fluency and Coherence partly involve how naturally your language flows, and an overly cautious pace can make your speech sound unnatural or uncertain.
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The target is a steady, natural pace — similar to how you would explain something to a friend. You do not need to race through your answers, but you also should not deliberately stretch every sentence.
If you genuinely do not understand a question, do not guess or pretend you do. Politely asking the examiner to repeat or rephrase the question is explicitly stated by the British Council to have no effect on your score.
That is safer than answering a question you did not understand, because an irrelevant or confused response can affect your coherence more than a brief request for clarification.
Use idioms only when they actually fit
Rare or idiomatic vocabulary can contribute to a strong Lexical Resource score, as the official descriptors reward the natural use of less common and idiomatic vocabulary.
The key word, however, is naturally.
Using an idiom simply because you memorised it from a study list can work against you if it does not fit the context, is mispronounced or sounds rehearsed.
An expression that is forced into an answer can make your speech sound unnatural and may suggest that you are relying on memorised language rather than demonstrating genuine vocabulary range.
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One or two well-placed idiomatic expressions used correctly and naturally can therefore be more useful than filling your answers with several memorised phrases.
If you are not confident about an expression or it does not come to you naturally, use a clear, simple sentence instead. A natural response is preferable to a complicated phrase that is confused, forced or mispronounced.
FAQs
Does a strong Nigerian accent negatively impact an applicant’s final IELTS speaking score?
No. Examiners assess pronunciation for clarity and intelligibility, not for how closely you sound like a native speaker of a specific variety of English. A Nigerian accent is not penalised as long as your speech is clear enough to be easily understood; unclear articulation or unpredictable stress patterns are what actually cost marks, regardless of accent.
What should a candidate do if they completely misunderstand the examiner’s question?
Ask the examiner to repeat or rephrase it. This is explicitly permitted and, according to the British Council, does not affect your score. Guessing at an answer to a question you didn’t understand is far riskier, since it can produce an off-topic or confused response that damages your Coherence score.
How does using rare idioms correctly boost the Lexical Resource score in the IELTS exam?
Correctly used idiomatic language demonstrates the range and flexibility that the official Band 7 and above descriptors specifically call for, which can meaningfully lift a Lexical Resource score. The key word is correctly: a forced, mispronounced, or contextually awkward idiom has the opposite effect, since examiners are trained to notice when an expression sounds rehearsed or doesn’t fit the sentence around it.
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